In this article we concisely present severalmodern strategiesthat are applicable to drift-dominated carriertransport in higher-orderdeterministicmodels such as the driftdiffusion,hydrodynamic, and quantumhydrodynamic systems. The approachesinclude extensions of “upwind” and artificialdksipation schemes, generalizationof the tradltional Scharfetter-Gummel approach, Petrov-Galerkin and streamline...

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The paper addresses a problem of semi-automated enterprise application integration. More close we discuss a problem of integration of numerical simulation components in the area of manufacturing engineering information systems. We propose an approach that is based on annotation of software interfaces with formal logical specifications. Logical inference procedure is used to choose appropriate e...

We have computationally investigated the head-on collision between two identical droplets by using commercial software tools based on the volume-of-fluid (VOF) method. The results were compared to that obtained by the front-tracking method and experiments. The simulated collision images were found to agree with the experimental observations only at a low or moderate Weber number (We). If We bec...

Abstract Injection molding is a cyclic process comprising of cooling phase as the largest part this cycle. Providing efficient in lesser cycle times significant importance industry. Conformal proven technique for reduction injection molding. In study, we have replaced conventional circuit with an optimized conformal tool (mold). The required heat transfer rate, coolant flow rate and diameter ch...

The topics discussed in this paper are closely connected to the development of parallel finite element algorithms and software based on domain decomposition [1, 2]. Numerical simulation on parallel computers generally produces data in large quantities being kept in the distributed memory. Traditional methods of postprocessing by storing all data and processing the files with other special softw...

Based on percolation mechanism of fractured reservoirs and simulation technique, the numerical simulation software of fractured reservoirs has been developed on PC-Linux environment, which is on the basis of DQHY simulator of three dimensions and three phases. It can treat dual-porosity/singlepermeability and dual-porosity/dual-permeability model. The results of examples indicate that the perfo...

We explore different mathematical formulations, develop an object-oriented simulation environment, and perform a parametric study in the design of a high-yield, low-cost (raw material), and short-cycletime chemical vapor deposition (CVD) reactor for microelectronic manufacturing. We begin with several possible configurations for the reactor and formulate them into their corresponding numerical ...

The purpose of this paper is to present a new type of dynamic balancing system, having a driving solution of the rotating part based on magnetic interactions. The magnetic system also plays the role of an elastic bearing. In the first part of the article is presented the technical solution which allows the dynamic balancing evaluation depending on the radial displacement between two disks with ...

In this paper, in order to understand the flow-pipe interaction more clearly, the variations on flow pattern around semi-buried pipelines due to steady current have physically and numerically been investigated. In physical modeling section, the experiments have been carried out in a flume with 10 meter length, 0.3 meter width and 0.5 meter depth using a P.V.C pipe with 6.35 cm in diameter (for ...